Two former Parramatta Eels players are accused of harbouring semi-automatic weapons and possessing more than half-a-million dollars in cash after dramatic arrests in Sydney's Centennial Park yesterday.

A woman who claims to be Gable Tostee's girlfriend has labelled Warriena Wright a "self-confessed psycho drunk" and said her boyfriend planned to sue the media after being acquitted of murdering the New Zealand woman.

Lizzi Evans, also from New Zealand, made the comments in the closed Facebook group "Gable Tostee and Warriena Wright case discussion group" on Saturday.

News Corp claims to have spoken to Ms Evans, who said that she was in a relationship with Mr Tostee.

She has reportedly used the Facebook page to vehemently defend Mr Tostee and in one conversation at the weekend she said Ms Wright was an "incredibly intoxicated, self confessed 'phycho' [sic] drunk whom felt it ok to assault people without warning on their own home".

"She acted irrationally and yet you continue to point the finger at an innocent man who acted in self defense," the post reads.

She also wrote Mr Tostee planned to sue a number of media outlets for defamation.

"He's very strong in character and personality his legal team have now a solid defamation case and building at the ready," she said.

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"The media has written blatant lies at times and they have a whole archive. He’s probably going to make a lot out of it actually."

Ms Evans, who has not been interviewed about her comments, reportedly sat with Mr Tostee's parents during his Supreme Court trial and cried and applauded as he was acquitted of murder and manslaughter last week.

The New Zealander said she had been in a relationship with Tostee for "quite a while" and members of the Facebook group said she had been seeing him since at least April when she visited him on the Gold Coast.

In a statement, Mr Tostee's solicitor Nick Dore said his client was "looking forward to moving on with his life" following his acquittal

"He thanks those people who have supported him through this and realises just how tragic this has been for many people," Mr Dore said.

"At this stage he is looking forward to putting it behind him and considering his future from here."